Apparatus for packing articles with material



July 2, 1929. M. JEFFREY ET AL 1.719.806

APPARATUS FOR PACKING ARTICLES WITH MATERIAL Filed Jan. 8, 1927 H A ORNEY5 Patented July 2, 1929.

UNITED STATES PATENT OFFICE.

MAX L. JEFFREY AND FRANK Id. SNYDER,

OF CLEVELAND, OHIO, ASSIGNORS TO THE WHITE MOTOR COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

APPARATUS FOR PACKING ARTICLES WITH IVIATERIAL.

Application filed January 8, 1927.

Our invention relates to a nlcahine for packing articles, such as, wrist pins, spring bolts. or the like, with lire clay prior to the hardening process to which such articles are subjected.

Prior to the hardening of such articles as wrist pins. spring bolts, etc.. it has been the practice to pack these articles by hand, with a re t'ractory material such. as clay. This method consumed much time and labor in the packing of such articles and limited their production. The hand method of packing was tedious, ditlicult, and expensive.

()ne of the objects of our invention therefore, is to mechanically pack such articles as wrist pins, spring bolts. etc. with a refractory material. prior to subjecting such articles to a hardening process.

Another object of our invention is to reduce the cost of packing wrist pins or other articles with, refractory material, and to increase their production.

Other objects and advantages of our invention will become more apparent as the description of an embodiment thereof progresses. reterencc being made to the acco'uu panying drawings in which like reference characters are employed to designate like parts throughout the same.

Fig. 1 is a side elevation of the invention.

Fig. 2 is an enlarged section thru the work. work hol der and the refractory material ejecting cylinder and nozzle.

Fig. 3 is an enlarged section on line 3-3 of Fig. 1.

Fig. 4 is an enlarged section on line 4-4 of Fig. 1.

Fig. 5 is an enlarged section on line 5 of Fig. 1.

Referring to the drawings which are illustrative of one embodiment of our invention. we have provided a suitable supporting means for the work, and the pressure and ejecting cylinders, such supporting means consisting preferably of suitable standards 5, having enlarged bases 6. upon which are bolted or otherwise secured, as at 7, a pair of channel irons, 8. These irons are secured together at their ends in substantial parallel relation, by means of bolts or rivets 9. To provide a greater supporting area along the 11 per and lower longitudinal surfaces of the c lannel irons, we may secure the irons together in spaced relation by interposing a spacer 10 extending substantially the entire length ot Serial No. 159.928.

the channel irons 8 and secured thereto by the bolts or rivets 9.

lVe have provided suitable means for holding the work or article to be filled with the refractory material. which consists preferably of a block 11, bolted or otherwise secured at its base, as at 12, to the upper surfaces of the channel irons adjacent one end thereof. Adjustably secured to the vertical wall 13. of the block 11. is a substantially V-shaped horizontal work centering support 14, and extending outwardly from the vertical wall .13 and having a downwardly projecting 'lorked portion 14. This is illustrated in enlarged section in Figs. 2 and 4. The Work support is held in its adjusted position by a bolt 15 passing between the fingers of the forked portion 14. It will be seen there fore that the work support 14 is easily adjustable and is detachable so that other supports of varying shapes and sizes may be substituted therefore, according to the size and the nature of the work to be supported.

We have provided means for ejecting refractory material from a suitable chamber. or cylinder, and injecting it into an opening in the work. which consists of a fluid pressure cylinder. means for controlling the pressure within the cylinder, and means for holding and ejecting the refractory material into the work.

A fluid pressure chamber 16 maybe mounted adjacent to the other end of the channel irons 8. its longitudinal axis extending substantially parallel with that of the irons. A suitable plunger or piston 17 is reciprocable within the cylinder and is carried on one end of a connecting rod 18. The opposite end of the connecting rod extends thru and is movable within a suitably packed opening in an end plate 19 of the cylinder and extends thru another suitably packed opening 20 in one end of the refractory material containing chamber 22. A )lllllgt*1 21 is secured to the other end of the connecting rod to reciprocate within the chamber 22. Although we have. not shown packing means between the plungers l7 and 21 and the respective internal walls of the chambers 16 and 22, it is to be understood that we may use any suitable structure constituting such means.

The refractory a rrying and ejecting chamber or cylinder 22 is slidably mounted to permit longitudinal adjustment of the cylinder with respect to the work and the pressure chamber 16. It will be noted in this connection that the longitudinal axes of the work. the ejecting chamber and the fluid pressure. chamber are in substantial alignment in the embodiment of my invention shown in the drawing. To permit relative longitudinal movement between the ejecting chamber and its support. we have provided means which preferably consist of a guide block having an upturned forward end constituting a stop to limit the movement of the chamber 22 in one direction, and having an extended portion or shoulder 26 formed on another end. A suitable stop is provided for adjustably limiting the movement of the ejecting chamber in the other direction and consists of a screw 2? having an enlarged head. the screw extending into the extended shoulder 26 and being capable of being locked in adjustable axial position with respect to thc extension by means of a. lock nut 28. A sec ond guide block 29, is provided with longitudinal overhanging edges which slidably cngage the longitudinal walls of the block 21. The chamber is securely held in place upon the block 29 by means of bands or straps so which are preferably strapped over the chamber adjacent its respective ends. These bands may be headed on one of their respective ends as at 31. the other end of each strap bein screw threaded to receive a nut 232. The headed ends of the straps are held in the respective forked members 33, while the screw threaded ends project thru openings formed in the arms 34. The arms 34 and the forked head members 33 are formed preferably integrally with the base 35 their cylinder supporting walls being shaped to conform to the contour of the cylinder The refractory material receiving and ejecting chamber 22 is provided with an enlarged opening 36 intermediate its ends to prmide for charging the chamber with refractory material. A suitable hopper I)? which serves to guide the material into the chamber is secured to the chamber as at 38.

e have provided means whereby the refractory material may be ejected from the chamber through a restricted outlet. This means may consist of a construction as illustrated in the accompanying drawings which shows a nozzle having a main body portion 39 preferably screw threaded internally so that it may be detach-ably secured to the ejecting end of the chamber 22 as shown at 40. The body portion 39 is preferably frusto-conically formed and terminates at its smaller end in a screw threaded apertured shoulder 41. A cap 42 internally screw threaded as at 13 is adapted to be screwed onto the threaded end 41 of the body 35). This cap is provided with an opening 4-1. which preferably conforms in contour with the aperture in the work which is adapted to be engaged by the outer face of the cap.

The cap 42, being detachably secured to the body 39. is interchangeable with other caps having discharge openings of various shapes and sizes. so that'a cap having an opening of certain shap and size may be used in lilting work having a refractory receiving opening of like shape and size. \Vhen pressure is cxcrlcd against the mass of refractory material within the chamber 22. a portion of the material will be forced against the converging wall of the body 39, thence through the opening at the forward end of the body 39 and finally discharged through the opening 11-, in the *ap.

Referring more particularly to Fig. it will be noted that the work 16. held in the work holder 14 extends beyond the outer end all of the holder sufficiently so that when the chamber 22 is moved to the left (Fig. 2) the outer face of the cap 42 will abut the adjacent end wall of the work in intimate contact. and in such a manner that the opening 1% of the cap will register with the open-- ing 47 in the work. thus permitting the extruded refractory material to be forced into the opening 47 under pressure and without danger of leakage between the abutting surfaces of the work and the cap.

\Ve have also provided means for actuating the piston or plunger 17 in the fluid chamber 16, which may comprise a. suitable valve or other control to the chamber 16. lefcrring more particularly to Fig. 1. we provide a conduit 48 leading from the source of fluid pressure and connected to a suitable valve. mechanism 49. In the present instance. valve 49 may comprise a three-way valve having an outlet leading into a conduit 50, which is connected at its other end to one end of the chamber 16. A conduit 51 communicates with another outlet of the valve 49 and with the opposite end of the chamber 16. The valve rotating or operating member 52 is provided with a crank arm 53. which in turn is connected to a manually operated levcr 5-1. through a connecting link 55. In the present showing of our invention we have illustrated the manually operated lever 54, a foot lever. although it to be understood that we may operate the valve by a hand lever if desired. A spring 56 connects the lcv r 54 with the beam structure 8 under tension so that normally the source of fluid pressure is cennectcd through the valve and conduit to maintain the piston or plunger 17 to the right as in Fig. 1. When the foot lever 54 is depressed extending the spring 56. the valve is actuated to connect the fluid pressure source through the conduit 51. whereby the piston 17 is 'aused to move to the left in the cylinder 16. simultaneously moving the connecting rod 18 and the plunger 21 to the left. in the chamber 22. As the plunger 21 begins its movement toward the left in Fig. 1. its forward end engages the mass of refractory material within tho, chamber and further movoment of the plunger in this tliroction will cause tho chambor 22 and its supporting baso to move to the left along the flltlflu blook 24 until tho work ong aging taco of tho rap l2 abuts an tltljtit'tlll] i'aoo, of tho work. t nrthor nioroniont of tho plungor 21 will oporato to bring tho abutting taoos ol' tho trap 42 aiul tho wont into inoro intimate oontaot. 'l'orniing a substantially soalotl oonnootion botwoon tho noxi llo aiul the work. lbulor suoh prossuro as is now boing oxortotl through tho piston ill to tho roil raotour niatorial antl with tho nozzle alul work abutting: oat-h otltor. a portion oi tho niatorial will bo (Xll'tttltfll through tho rostriototl oponing lllltltl' prossuro oi tho piston 3 and will bo injoototl into tho opoaing' 4? in tho work. Yt'hon it is tlosirotl to rolioro oausin r tho \alvo to oonnoot; tho tluitl prossuro souroo, ith tho opposito Hltlt, ol' tho plungor IT or through tho ooinltlit ht), tho piston 21 will bo pulloil to tho right air-l tho ohanibor 2: will bo inoxoil to tho right as in Fig. 1, along t'ho guitlo lwlool: until tho oml ot tho atljustahlo stop 2? abuts with tho rig 'itl wall of tho cap 1%). flint-o tho piston it, has boon torootl against tho rotraotory natorial uinlor groat prossuro in tho ojootiug stop just (lOSClll'Mtl. su'llioio/ntj suction will bo tlltltttl hotwoon tho matorial, tho ohainbor wa ts and tho piston 21 to oauso tho ohauibor to inovo to tho right in Fig. '1 whon tho toot lovor is roloasotl. Tho Cap 42 is thus brought out ot onragoniout with tho work flfltl tho rot'raotory inat'orial is roliovotl of tho prossuro whit-h has boon appliotl to it. Tho work may now ho roniovotl troin its hohlor and a now piooo of work ins-tortotl thoroin an l tho oporat ion of tho apparatus olmtinuotl as holoro,

Duo to tho (Klt'tlllfi simplioity in tho oonstruotion :intl tho oaso ot operation t tho ontiro apparatus. wo havo matorially inoroaso l tho output anrl ha \o ,Qjtttltl) lttllltttl tho (ost otfilling artiolos with rotraotory lnatorial.

Various ohangos in tho (lotails of oonstruotion may ho mado without (lopart'ing' from the spirit ot tho in vontion or the soopo of the subjoinwl olaims.

hat is olainio l is:

'1. An apparatus for filling artiolos with rol'raotor) u'iatorial. oon'iprising' a support for said artiPlos. a rotraotory inatorial holtlinn (f \'llll(l(l having an oponing in an owl thorool' ainl means for ojooting tho inatorial Within the cylinder through Sflitl opening un- (ler pressure, said cylinder being movable when pressure is applied to the material thoroin, tho movoment of tho, oylin lor being lllllllitl in one (lirootion by tho article to ho lillotl.

Z. An apparatus for filling" artiolos with rolraotor matorial comprising a support, t'or saitl artit-los. a rolraotory material llUltlin; o 'lintlor having a rostriototl oponing in an end thoroot and moans i'or oiooting tho matorial within the (:ylintlor through said oponing uinlor prossuro. saitl oylintlor hoing nmvablo whon prossuro is appliotl to tho matorial thoroiin tho niovon'lont of the r 'lin(lor iming! llllllittl in ono (lirootion by the artiolo to bo fillotl an l moans tor rot racting tho rylin- (tor upon eoniplot ion of tho tilting operation.

it. An apparatus for titling artiolos with rol'rartony niatorial oomprising a support 'l fll b tlitl artiolos, a rol'raotory niatorial llOltl- Eng; oylintlor having a rostriotei'l oponing in an oral thoroot'; ainl means for ojeoting tho inatorial within tho Ylllltltl' throug'lrsaitl oponing umlor prossuro, saitl oyliiulor hoing movahlo whon prrssuro is applio l to tho 11121 torial thoroin. the illUCtllitIll of the oyliiulor hoing limitotl in one direction by tho artiolo to bo tillotl antl moans for retracting the oylin (tor upon oomplotion of the filling oporation tttltl moans whoroby tho IQlttlCtOtl lnovoniont of tho oylintlor is limited to a protlotorniino l listanoo. V

"t. An apparatus for filling artiolos with iot'raotor material comprising a haso. a work ltOltltl' soourotl to saitl baso. a rot'raotory niatorial oontaining' oylintlor slitlably mount- (ti on saitl base, the movoment of Sflhl cylin- (ltt' in 0110 tlirortion hoing lllIlltPtl by the work in saitl work holtlor. a fluid pressuro oylintlor, a plunger rooiprooable within tho Stlltl last nainotl (:yliiulor, antl moans for solootiivol) applying prossuro to oithor sitlo ot this pluno'or, and moans aotuato l by sai l plungor for moving said matorial holding oylintlor into ongagomontwith an artiolo, whoroby a portion of the refractory material within tho eylintlor may be translorrml umlor pros suro to the article.

In t'ostimony whorool' wo horounto attix our signaturos this 17th (lay of Dooomhor. 1926.

MAX L. JEFFREY. FRANK L. SNYDER. 

